The Disinherited by Poul Anderson

The Disinherited by Poul Anderson (Orbit #1, 1966) starts with two starship pilots in orbit around a planet called Mithras, where a human science expedition landed a century before. Their discussion provides various bits of background information, most pertinently that all interstellar travel is to be stopped.
After this setup the bulk of the story is from the viewpoint of Thrailkill, who is the son of one of the science team, and we join him as he returns from expedition upriver of Point Desire, the only city on the planet. With him are his wife, child, and an indigenous alien called Strongtail, a kangaroo-like creature with long arms and a head like a bird. When they arrive at an inn in Point Desire they are greeted with the news of the starship’s arrival, and that the arriving crew “say you can now go home”.
The remainder of the story focuses on the plan to remove the science mission, which leads Thrailkill and the other colonists to realise that they want to stay. In amongst all this, there is some good description of the planet and Thrailkill’s life there:

When he and Tom Jackson and Gleam-Of-Wings climbed the Snowtoothe, white starkness overhead and the wind awhistle below them, the thunder and plumes of an avalanche across a valley, the huge furry beast that came from a cave and must be slain before it slew them. Or shooting the rapids on a river that tumbled-down the Goldstream Hills, landing wet and cold at Volcano to boast over their liquor in the smoky-raftered taproom of Monstersbane Inn. Prowling the alleys and passing the lean temples of the Fivedom, and standing off a horde of the natives’ half-intelligent, insensately ferocious cousins, in the stockade at Tearwort. Following the caravans through the Desolations, down to Gate-of-the-South, while drums beat unseen from dry hills, or simply this last trip, along the Benison through fogs and waterstalks, to those lands where the dwellers gave their lives to nothing but rites that made no sense and one dared not laugh. Indeed Earth offered nothing like that, and the vision-screen people would pay well for a taste of it to spice their fantasies.  p. 73

Eventually Kahn, the starship captain, assembles all the humans and speaks to them while he waits for his men to arrive. He tells them that their colony isn’t a viable size, and they cannot be allowed to stay because, if they do, they will expand their numbers and overwhelm the planet and the aliens who live there. During his speech he refers to some of the indigenous populations of Earth’s past (Native Americans, etc.) who were overwhelmed by new arrivals. Then a shuttle from the starship arrives, armed men enter, and the story ends.
This is a picturesque story, but it poses a false dichotomy1 and the last scene resembles one of those didactic Analog story-lectures. It also ends far too abruptly, and feels like the beginning of a longer, better story.
** (Average). 5,500 words.

 1. The ending of this piece made me realise that a lot of stories probably have simplistic either/or endings for dramatic reasons—in this case it means you can either finish the story as above (armed arrest), or you could have a “resistance and independence” ending (in what would be a longer story). A more pragmatic, fudged solution, where the humans covenant with the aliens to limit the size of their colony, for instance, probably wouldn’t be as satisfying.